"unu, doi, trei, patru, cinci, cinci, sase" - The Offspring
Șase not sase
I cannot do the s-cedilla on my cell phone
You might, long-press s and see if you get variations.
Interestingly, that works on my tablet but not my cell phone...
Changing your keyboard language settings can help.
Both ios and Android support language switching on keyboards, so you can change to Romanian only when you need it.
Then long pressing the characters will work correctly
So typing the numbers is incorrect?